Apparently Hannah and Caleb aren't built to last!Tyler Blackburn, who plays Hannah's (Ashley Benson) brooding boyfriend on Pretty Little Liars, is set to star in the ABC Family show's spin-off, Ravenswood, the network announced Tuesday.ABC Family renews Pretty Little Liars, ...

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Apparently Hannah and Caleb aren't built to last!

Tyler Blackburn, who plays Hannah's (Ashley Benson) brooding boyfriend on Pretty Little Liars, is set to star in the ABC Family show's spin-off, Ravenswood, the network announced Tuesday.

ABC Family renews Pretty Little Liars, orders Ravenswood spin-off

Caleb will appear in the upcoming season of Pretty Little Liars and will travel to Ravenswood during the annual Halloween episode. The first episode of Ravenswood will premiere immediately after the Halloween special.

Blackburn, 26, has played Rosewood's resident bad boy since Season 1. First announced last month, Ravenswood comes from Pretty Little Liars executive producers I. Marlene King, Oliver Goldstick, Joseph Dougherty and Leslie Morgenstein, and follows five strangers who suddenly find themselves connected by a fatal curse.

Are you glad Blackburn is joining the spin-off? Or are you sad Caleb is leaving Pretty Little Liars? Sound off below!